2101120102 has 4 divisors (see below), whose sum is σ = 3151680156. Its totient is φ = 1050560050.

The previous prime is 2101120061. The next prime is 2101120121. The reversal of 2101120102 is 2010211012.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525280024 + ... + 525280027.

It is an arithmetic number, because the mean of its divisors is an integer number (787920039).

Almost surely, 2^2101120102 is an apocalyptic number.

2101120102 is a deficient number, since it is larger than the sum of its proper divisors (1050560054).

2101120102 is a wasteful number, since it uses less digits than its factorization.

2101120102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050560053.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2101120102 is about 45837.9766351003. The cubic root of 2101120102 is about 1280.8068037709.

Adding to 2101120102 its reverse (2010211012), we get a palindrome (4111331114).

The spelling of 2101120102 in words is "two billion, one hundred one million, one hundred twenty thousand, one hundred two".